Launched by JAXA in 2006, ALOS-1 is an Earth observation satellite, offering high-resolution images for various applications, from disaster management to environmental monitoring.

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Technical Specifications

ProviderJapan Aerospace Exploration Agency
Resolution2.5m panchromatic 
10m multispectral
Swath width70km at nadir
Accuracy10m at nadir
BandsVisible and Near-Infrared (VNIR)
Short-Wave Infrared (SWIR), and
Phased Array type L-band Synthetic Aperture Radar (PALSAR)
Stereo availableYes - Stereo and Tri-stereo
Coverage140,000km² per day
Altitude692 km


ALOS-1, or the Advanced Land Observing Satellite-1, is a remarkable Earth observation satellite developed and operated by the Japan Aerospace Exploration Agency (JAXA). Launched on January 24, 2006, ALOS-1 has played a pivotal role in advancing our understanding of our planet's environment and resources. Equipped with an array of advanced sensors and instruments, ALOS-1 is capable of capturing high-resolution images of the Earth's surface, monitoring changes in topography, vegetation, and natural disasters.

Comprehensive monitoring
Comprehensive monitoring

Comprehensive monitoring of land and coastal areas for land management, conservation, and disaster response purposes.

Wide swath width
Wide swath width

Wide swath width and excellent quality data for various applications like urban planning and agriculture.

Flexible imaging capabilities
Flexible imaging capabilities

Flexible imaging with high-resolution spotlight mode and left/right look functions for 3D modelling and terrain analysis.

Features and Benefits

  • ALOS-1 is equipped with optical and synthetic aperture radar (SAR) sensors, providing high-resolution imagery for various applications, including urban planning, agriculture, and forestry. 
  • The satellite has a wide swath width, allowing it to capture large areas in a single pass. This was especially valuable for monitoring vast regions and changes over time. 
  • ALOS-1 is capable of generating 3D topographic maps using its PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) sensor. This feature was crucial for topographic and geological studies.
  • ALOS-1 played a significant role in disaster management by providing rapid and accurate information about natural disasters, including earthquakes, landslides, and flooding.
  • The satellite contributed to environmental monitoring, helping track deforestation, land use changes, and habitat conservation efforts.
  • ALOS-1 supported various scientific studies, including glaciology, oceanography, and geology, by providing detailed Earth observations.

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